Machine for making soles.



JOHNSON MACHINE FOR WIAIHNG SOLES .awucmwor: FELED ma. 9, 1915.

Patented Dec. 5, 1916.

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ALBERT E. JOHNSON, OF BEVERLY, MASSACHUSETTS, ASSIGNOR T0 UNITED SHOE MACHINERY COMPANY, OF PATERSQN, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOR MAKING- SOLES.

menace.

Specification of Letters latent.

Patented Dec. 5, 11916.

7 '0 all whom it may concern:

Be it known that T, ALBERT E. JoHNsoN, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Machines for Making Soles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to machines, for making soles and more particularly to edge beveling or chamfering mechanisms adapted for use in sole fitting machines.

The invention is an improvement onthe edge chamfering mechanism described in United States Letters Patent to William Gordon No. 989,142, granted April 11, 1911, and for purpose of illustration is shown as applied to the Economy channeling ma-. chine disclosed in United States Letters Patent to William C. Meyer No. 984,773, granted February 21, 1911.

The objects and advantages of an edge chamfering mechanism in the manufacture of insoles is fully set forth in said patent to William Gordon, but those skilled in the art will recognize that the utility of the invention is not confined to a combination with'the tools of a particular type of insole channeling machine or, in fact, to an, application to any insole fitting machine for the edge chamfering may readily beperformed as a separate operation if thought desirable. It has been found desirable, commercially, to completely fit an insole in one operation and the edge gage of an insole channeler forms a convenient part to suptt port a chamfer knife for beveling the edge of the unlipped surfaceofthe insole.

The invention, as illustrated, is applied to a machine for channeling Economy insoles,

fit

but obviously .it may be used with equal effeet in making Goodyear welt insoles, or in providing a beveled edge on a sole of any type where such an edge is deemed desirable.

The various novel features of the improved edge chamfering mechanism will be apparent to those skilled in the art from the following description of its preferred construction and the accompanying drawings illustrating the. construction, in which,

Figure 1 is a front elevation of thework support and adjacent tools of the machine of said patent to William C. Meyer with the improved chamfer knife mechanism mounted on the edge gage, Fig. 2 is a plan of the work support and chamfer' knife mechanism illustrated in Fig. 1, Fig. 3 is a perspective of the chamfer knife mechanism, as viewed from above, Fig. 4 is an underside view of the chamfer knife mechanism, Fig.

5 is an enlarged end elevation of the chamfer knife mechanism, showing also the manner in which the edge gage is connected to the machine frame, Fig. 6 is a detail, in perspective, and detached from the chamfer knife holder, of the device for preventing the four motion feed foot45 and its carrier;

and the edge gage 91 and its operating mechanism, all being designated by refer ence characters corresponding to those in said patent to William C. Meyer. The edge gage 91 is provided with a dovetailed shank 46 (Fig. 5), which fits in a correspondingly shaped. way in the edge gage supporting bracket 95, and the chamfer knife mechanism of the present invention is mounted upon the edge gage shank 46.

A chanifer knife block 47 is secured to the shank 46 by a pair of headed set screws 48 which pass through slots 49 in the block thus permitting adjustment of the block, and the chamfer knife 50 carried thereby, longitudinally of the edge gage 91 or across the line of feed of the sole being operated on. The block 47 is provided with a slot extending at an angle to the sole supportingsurface of the work support 35 (preferably an angle of substantially 30) and the chamfer knife 50 is held adjustably therein by a clamping plate 51. By loosening the set screw 52 the knife 50 may readily be adjustedfor wear. The sole engaging or operative end of the edge gage 91 is, rabbeted out at its rear sideforming a shoulder 53 ('F1g.- 7 and the knife 50 extends into the space thus provided and above said shoulder. The setting of the knife in its block is such that its cutting edge 54 (Fig. 3)' projects beyond the end of the edge gage and is thus in a position to remove a small skiving or bevel string, from the unlipped surface of any solefed through the channeling machine having its edge pressed against the edge gage.

There should be a bearing for the edge of the sole abovethe knife and in my co-pending application Serial No. 694,814, filed May 3, 1912, an edge chamfering knife is illustrated which extends forwardly through an angular slot in the end of the edge gage. With such a construction, however, a tight fit cannot readily be maintained between the knif and the overhanging portion of the bearing'face of the edge gage with the result that, particularly on light soles, the

I edge of the sole is drawn into the interstice between these two parts which forms a thin lip on the sole edge making a ragged edge on the finishedsole- The drawing of the sole inward also has the serious disadvan-v tage'ofchanging the desired location of the edge and channel cuts relative to the edge of the sole and furthermore the sole is harder to feed.

In order to secure the proper length of bearing surface on the edge gage, and'yet overcome the disadvantages just set forth, the bearing surface above the knife 5 is made as a separate bearing block carried on the lower end of a stem 56 which extendsrearwardly besid the shank of. the knife and isaclamped, with the knife, in the slot forme in the knife block 47. The stem 56 is of such proportions that the block 55 at all times bears firmly on the upper side of the knife 50.

The margin of the sole in advance of thechamfer knife 50 should be properly supported for the certain action of the "knife thereon and it has been proposed toprovide the edge gage with a forwardly projecting,

' integral sole support like the part having a similar function in the mechanism of said William Gordon patent, except that as the present support must rest on the sole engaging surface of the work support 35 it has been made as a thin tapered foot so as not to. materially displace the sole vertically and also not interfere with the operation of the presser foot of the channeling machine. Trouble has been experienced in having this integral foot break necessitating its replacement by an entirely new edge gage. To overcome this disadvantage, in the present mechanism the sole supporting foot is preferably made separate from the edge gage. As now proposed the sole supporting foot comprises a thin, tapered end portion 57 which extends beyond the operative end of the edge gage 91, on a plate 58 adjustably secured flush against the under side of the edge gage by a headed set screw 59 passing through a slot therein (se Fig. 4:). To overcome a sidewise displacement of the sole supporting foot, due to the strain imposed thereon by the feed of the sole thercover, the edge gage is provided with a depending shoulder 60 (Fig. 4:) against which the rear edge of'the plate 58 bears and which takes up the thrust on the sole support from the cause just referred to. It is also desirable, for the same reason as given in connection with the desirability of the construction involving the block 55, that the lower side of the foot 57 should hug the surface of the work support To attain this end the plate 58 is preferably made of spring metal and when the work support is removed from the edge gage the'forward end of the plate, forming the foot 57, springs slightly away from the under face of the edge gage (see Fig. 7). Such a construction causes the foot 58 to invariably press tightly against the work support when in operative position.

The operation of the machine illustrated in thedrawings will b clearly understood from the description-above given of the construction and arrangement of the various parts, and it need only be stated that as an insole isfed through the machine the channellng knife 1 acts to form the channel and channel fiap, the edge splitting knife 11 acts to form the lip, and the chamfering knife 50 acts to form th bevel at the edge of the unlipped surface of the sole, the skiving removed passing beneath the chamfering knife through the opening between the edge of the knife and the sole supporting foot 57.

The nature and scope of the present invention having been indicated and the preferred embodiment of the invention having been specifically described, what is claimed as new is:

l. A machine for making soles, having, in combination, a sole support, an edge gageTaphamfer knife projecting through the operative end of said gage, and means for preventing the edge of a sole being drawn under the edge of the gage where it overhangs the knife.

"2. An edge gage for sole fitting machines, having a rabbeted out portion at its operative end, a chamfer knife extending through said rabbet and projecting beyond the operative end of the gage, and a bearing block forming a continuation of the operative end of the edge gage and held in contact with the knife.

3. An edge gage for'sole fitting machines,

neovyaoe m knife block and extending into said rabbet,

said knife projecting beyond the operative end of the edge gage and said bearing block forming a continuation of the operative end of the gage.

4. A machine for making soles,-having, in combination, a sole support, an edge gage, sole feeding means, a thin, tapered foot-carried by said gage arranged to rest'on the sole engaging face of said support beneath the margin of the sole,and means to take up the thrust on said foot as the sole is fed through the machine.

5. A machine for making soles, having, in combination, a sole support, an edge gage, sole feeding means, a thin, tapered foot carried by said gage arranged to rest on the sole engaging face of said support beneath the margin of the sole, means for detachably securing said foot to the under side of said gage, and a depending shoulder on said gage against which the rear edge of said foot, in the lineof feed, abuts.

6. An edge gage for sole fitting machines, having a shoulder depending from its under side and a plate mounted flush against the under side of the gage and having one edge engaging said shoulder and its end projectin beyond the operative end of the gage.

Amachine for making soles, having, in combination, an edge gage, a sole support movabletoward and from said gage, and a sole supporting foot carriedby the under side of said gage and normally sprung away therefrom whereby when the'sole support is moved into engagement therewith the foot will hug the surface of the sole support.

8. An edge gage for sole fitting machines, having mounted on its bottom side a sole supporting foot in the form of a plate having a thin, tapered endmade of spring metal and normally sprung away from the gage.

'9. A machine for making soles, having, in combination, a sole support, a lip forming knife, a thin, tapered foot arranged to rest on the sole engaging face of the said support beneath the margin of the sole, and a beveling knife cooperating with said foot arranged to act on the edge of the unlipped face of the sole.

10. A. machine for making soles, having, in combination, a sole support, a lip forming knife, a. presser foot therefor, and a beveling knife arranged to act on the edge of theunlipped surface of the sole located in advance, in the line of feed, of said presser foot.

11. A machine for making soles, having, in combination, a sole support, a lip forming knife, a presser foot therefor, a beveling knife arranged to act on the edge of the unlipped face of the sole, a foot arranged to support the margin of the unlipped face of the sole and cooperate with said beveling knife to sever the bevel string", and an edge gage located in advance, in the line of feed, of said knife and presser foot on which said beveling knife and foot are mounted.

ALBERT E. JOHNSON. 

